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  1. Comparison of Life Satisfaction in Persons With Spinal Cord Injury Living in 22 Countries With Different Economic Status
    Tasiemski T, Kujawa J, Tederko P, Rubinelli S, Middleton JW, Craig A, et al.
    Arch Phys Med Rehabil, 2021 Dec 17.
    PMID: 34922932 DOI: 10.1016/j.apmr.2021.11.008
    OBJECTIVE: To analyze and compare life satisfaction (LS) in persons with spinal cord injury (SCI) living in 22 countries participating in the International Spinal Cord Injury (InSCI) community survey. The study tested the hypothesis that there are differences in LS across InSCI countries according to the countries' economic status specified as gross domestic product per capita purchased power parity (GDP-PPP).

    DESIGN: Cross-sectional survey.

    SETTING: Community setting (22 countries representing all 6 World Health Organization regions).

    PARTICIPANTS: Persons (N=12,108) with traumatic or nontraumatic SCI aged at least 18 years, living in the community and able to respond to one of the available language versions of the questionnaire.

    INTERVENTIONS: Not applicable.

    MAIN OUTCOME MEASURES: LS measured by 5 items selected from the World Health Organization Quality of Life Assessment-BREF: satisfaction with overall quality of life, health, daily activities, relationships, and living conditions. LS index was calculated as the mean of these 5 items.

    RESULTS: The highest level of LS was reported by persons with SCI living in the United States, Malaysia, and Switzerland (mean range, 3.76-3.80), and the lowest was reported by persons with SCI living in South Korea, Japan, and Morocco (mean range, 2.81-3.16). There was a significant cubic association between LS index and GDP-PPP. Regression tree analysis revealed the main variables differentiating LS index were GDP-PPP and monthly income, followed by time since injury and education.

    CONCLUSIONS: Life satisfaction reported by persons with SCI related mainly to their country economic situation expressed by GDP-PPP and monthly income. The results of this study underscore the need for policy dialogues to avoid inequalities and improve the life experience in persons with SCI.

  2. Fulltext Preparation and Characterization of Polyphenylsulfone (PPSU) Membranes for Biogas Upgrading
    Kujawski W, Li G, Van der Bruggen B, Pedišius N, Tonkonogij J, Tonkonogovas A, et al.
    Materials (Basel), 2020 Jun 25;13(12).
    PMID: 32630434 DOI: 10.3390/ma13122847
    Asymmetric polyphenylsulfone (PPSU) membranes were fabricated by a non-solvent induced phase inversion method. Glycerin and silica nanoparticles were added into the polymer solution to investigate their effects on the material properties and gas separation performance of prepared membranes. The morphology and structure of PPSU membranes were analyzed by scanning electron microscopy (SEM), the surface roughness of the selective layer was analyzed by atomic force microscopy (AFM), and the surface free energy was calculated based on the contact angle measurements by using various solvents. The gas separation performance of PPSU membranes was estimated by measuring the permeability of CO2 and CH4. The addition of glycerin as a nonsolvent into the polymer solution changed the cross-section structure from finger-like structure into sponge-like structure due to the delayed liquid-liquid demixing process, which was confirmed by SEM analysis. The incorporation of silica nanoparticles into PPSU membranes slightly increased the hydrophilicity, which was confirmed by water contact angle results. PPSU membrane fabricated from the polymer solution containing 10 wt.% glycerin showed the best CO2/CH4 selectivity of 3.86 and the CO2 permeability of 1044.01 Barrer. Mixed matrix PPSU membrane containing 0.1 wt.% silica nanoparticles showed the CO2/CH4 selectivity of 3.16 and the CO2 permeability of 1202.77 Barrer.
  3. Clinical replicability of rehabilitation interventions in randomized controlled trials reported in main journals is inadequate
    Negrini S, Arienti C, Pollet J, Engkasan JP, Francisco GE, Frontera WR, et al.
    J Clin Epidemiol, 2019 10;114:108-117.
    PMID: 31220570 DOI: 10.1016/j.jclinepi.2019.06.008
    OBJECTIVE: The objective of this study was to study if randomized controlled trials (RCTs) in rehabilitation (a field where complex interventions prevail) published in main journals include all the details needed to replicate the intervention in clinical practice (clinical replicability).

    STUDY DESIGN AND SETTING: Forty-seven rehabilitation clinicians of 5 professions from 7 teams (Belgium, Italy, Malaysia, Pakistan, Poland, Puerto Rico, the USA) reviewed 76 RCTs published by main rehabilitation journals exploring 14 domains chosen through consensus and piloting.

    RESULTS: The response rate was 99%. Inter-rater agreement was moderate/good. All clinicians considered unanimously 12 (16%) RCTs clinically replicable and none not replicable. At least one "absent" information was found by all participants in 60 RCTs (79%), and by a minimum of 85% in the remaining 16 (21%). Information considered to be less well described (8-19% "perfect" information) included two providers (skills, experience) and two delivery (cautions, relationships) items. The best described (50-79% "perfect") were the classic methodological items included in CONSORT (descending order: participants, materials, procedures, setting, and intervention).

    CONCLUSION: Clinical replicability must be considered in RCTs reporting, particularly for complex interventions. Classical methodological checklists such as CONSORT are not enough, and also Template for Intervention Description and Clinical replication do not cover all the requirements. This study supports the need for field-specific checklists.

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